yaySIM does not provide an eSIM with a local phone number or SMS capabilities for Saint Vincent and the Grenadines. Travelers can only purchase data‑only plans, which give access to the internet via 4G or 5G networks but not to traditional voice or text services.
For voice and messaging, users can rely on VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, availability of these services can vary; it is advisable to confirm that the needed apps work in Saint Vincent and the Grenadines before buying a plan.